Fix spelling of 'multicloud' in introduction.yml

Author: R-C-Stewart

learn-pr/wwl-sci/connect-hybrid-multicloud-environments-defender/1-introduction.yml

@@ -2,7 +2,7 @@
 uid: learn.wwl.connect-hybrid-multicloud-environments-defender.introduction
 metadata:
   title: Introduction
-  description: Introduction to connecting hybrid and multi-cloud environments to Microsoft Defender for Cloud.
+  description: Introduction to connecting hybrid and multicloud environments to Microsoft Defender for Cloud.
   ms.date: 04/01/2026
   author: r-c-stewart
   ms.author: roberts